World of Warcraft Player vs. Everything: When will the players leave WoW?

''I always think it's interesting when I hear developers talk about how World of Warcraft opened up the MMOG market for new entrants. We have all these new and exciting games coming out: Age of Conan, Warhammer Online, The Chronicles of Spellborn, and plenty more. However, the overwhelming response that I get from WoW players when I talk about these games is a blank stare and something along the lines of, "Okay, that sounds all right... but why would I ever want to leave WoW?" I think that developers tend to underestimate how attached people get to their MMOG of choice. There are now over 10 million World of Warcraft players. The question is, do they even want something different?''